Notes:
Growing off of very moss-covered Ohia (Metrosideros polymorpha var. glaberrima) log in native wet forest. Elevation ca. 1200 meters. Found following three days of light to somewhat heavy rain, so this individual was quite rotten, precluding much in the way of useful field observations.

According to Desjardin, this matches the undescribed species of Callistosporium (burgundy-colored, occurring in wet forest on Ohia logs). Does anyone have any more recent information on this species??